Washington · Pacific Time
509 Area Code
Area code 509 is in Washington, serving eastern Washington, including Spokane, Yakima and the Tri-Cities. It is in the Pacific Time zone.
Last updated October 1, 2026 · Source: NANPA
Where is the 509 area code?
509 is a Washington area code covering eastern Washington, including Spokane, Yakima and the Tri-Cities. In the wider directory it sits in the West region.
Cities in the 509 area code
- Spokane
- Spokane Valley
- Kennewick
- Yakima
- Pasco
- Richland
- Wenatchee
- Walla Walla
- Pullman
- Moses Lake
- Ellensburg
- Sunnyside
- Cheney
- Othello
Counties served by 509
Spokane County, Yakima County, Benton County, Franklin County, Chelan County, Walla Walla County, Whitman County, Grant County, Kittitas County and Okanogan County.
Dialing 509
Spokane, WA is currently served by the single area code 509, with no overlay. Ten-digit dialing (area code + seven-digit number) always works and is increasingly the norm nationwide; some local calls may still connect with seven digits. If a future overlay is added, 10-digit dialing would become mandatory.
From outside the US, dial +1 509 followed by the seven-digit number.
History of the 509 area code
509 went into service on January 1, 1957. It serves Spokane and the surrounding part of Washington. For how codes are created, split, and overlaid, see how area codes work.
Is 509 a scam or spam risk?
509 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 509 number on your screen is no guarantee the caller is in Spokane, WA or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Washington area codes
Explore more
See every code in Washington, compare codes across the West region, or view all Pacific Time codes. You can also browse the 5XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
509 area code FAQ
Where is the 509 area code?
The 509 area code is in Washington, covering eastern Washington, including Spokane, Yakima and the Tri-Cities, in the West region.
What cities are in the 509 area code?
Cities in the 509 area code include Spokane, Spokane Valley, Kennewick, Yakima, Pasco, Richland, Wenatchee, Walla Walla, Pullman and Moses Lake.
What time zone is 509 in?
509 is in the Pacific Time zone.
When did the 509 area code start?
509 went into service on January 1, 1957.
Do I have to dial 10 digits for 509?
Ten-digit dialing always works, and many areas now require it; some local calls in this area may still connect with seven digits.
Is 509 a toll-free or premium code?
No. 509 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.